Develop Reference

Converting ActivityGroup app to use Fragments/FragmentGroup

I have an app that I desperately need to convert from using the old ActivityGroup class to Fragments. I'm not sure how to go about it though. Below is a sample of the code I use now. Could anyone provide some insight into what steps I should take to start switching it over to use Fragments / FragmentManager instead?
Main.java
public class Main extends TabActivity implements OnTabChangeListener {
public static TextView txtViewHeading;
public static Button btnBack;
public static ImageButton btnShare;
public static Main mainActivity;
public static Boolean isVisible = false;
private GoogleCloudMessaging gcm;
private static final int PLAY_SERVICES_RESOLUTION_REQUEST = 9000;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
mainActivity = this;
NotificationsManager.handleNotifications(this, NotificationSettings.SenderId, PushHandler.class);
registerWithNotificationHubs();
//reference headings text & button for access from child activities
txtViewHeading = (TextView) findViewById(R.id.txtViewHeading);
btnBack = (Button) findViewById(R.id.btnBack);
btnShare = (ImageButton) findViewById(R.id.btnShare);
// Update the font for the heading and back button
Typeface arialTypeface = Typeface.createFromAsset(getApplicationContext().getAssets(), "fonts/arial.ttf");
Typeface myriadTypeface = Typeface.createFromAsset(getApplicationContext().getAssets(), "fonts/myriad.ttf");
txtViewHeading.setTypeface(myriadTypeface);
btnBack.setTypeface(arialTypeface);
Resources res = getResources();
TabHost tabsNavigation = getTabHost();
// Set up the views for each tab - custom view used for Badge icon
LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
// Set up my tabs...each one looks similar to this
View statusTabView = inflater.inflate(R.layout.tab, null);
ImageView statusTabIcon = (ImageView) statusTabView.findViewById(R.id.tabIcon);
statusTabIcon.setImageResource(R.drawable.tab_first);
TextView statusTabText = (TextView) statusTabView.findViewById(R.id.tabText);
statusTabText.setText("Status");
statusTabText.setTypeface(arialTypeface);
statusTabBadge = (TextView) statusTabView.findViewById(R.id.tabBadge);
statusTabBadge.setTypeface(arialTypeface);
tabsNavigation.addTab(tabsNavigation.newTabSpec(getResources().getString(R.string.main_tab_status))
.setIndicator(statusTabView)
.setContent(new Intent(this, StatusGroupActivity.class)
.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)));
//Set default tab to Status
tabsNavigation.setCurrentTab(0);
tabsNavigation.setOnTabChangedListener(this);
}
/* Set txtViewHeading text to selected tab text */
#Override
public void onTabChanged(String tabId) {
// TODO Auto-generated method stub
txtViewHeading.setText(tabId);
}
/* Set code to execute when onDestroy method is called */
#Override
protected void onDestroy() {
// TODO Auto-generated method stub
super.onDestroy();
}
/* Set code to execute when onPause method is called */
#Override
protected void onPause() {
super.onPause();
isVisible = false;
}
/* Set code to execute when onResume method is called */
#Override
protected void onResume() {
super.onResume();
isVisible = true;
}
/* Set code to execute when onStop method is called */
#Override
protected void onStop() {
super.onStop();
isVisible = false;
}
/**
* Check the device to make sure it has the Google Play Services APK. If
* it doesn't, display a dialog that allows users to download the APK from
* the Google Play Store or enable it in the device's system settings.
*/
private boolean checkPlayServices() {
GoogleApiAvailability apiAvailability = GoogleApiAvailability.getInstance();
int resultCode = apiAvailability.isGooglePlayServicesAvailable(this);
if (resultCode != ConnectionResult.SUCCESS) {
if (apiAvailability.isUserResolvableError(resultCode)) {
apiAvailability.getErrorDialog(this, resultCode, PLAY_SERVICES_RESOLUTION_REQUEST)
.show();
} else {
ToastNotify("This device is not supported by Google Play Services.");
finish();
}
return false;
}
return true;
}
public void ToastNotify(final String notificationMessage) {
runOnUiThread(new Runnable() {
#Override
public void run() {
Toast.makeText(Main.this, notificationMessage, Toast.LENGTH_LONG).show();
}
});
}
public void registerWithNotificationHubs()
{
if (checkPlayServices()) {
// Start IntentService to register this application with GCM.
Intent intent = new Intent(this, RegistrationIntentService.class);
startService(intent);
}
}
}
TabGroupActivity.java
public class TabGroupActivity extends ActivityGroup
{
private ArrayList<String> mIdList;
Button btnBack;
ImageButton btnShare;
TextView txtViewHeading;
#Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
btnBack = Main.btnBack;
btnShare = Main.btnShare;
txtViewHeading = Main.txtViewHeading;
btnBack.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
onBackPressed();
}
});
if (mIdList == null) mIdList = new ArrayList<String>();
}
/**
* This is called when a child activity of this one calls its finish method.
* This implementation calls {#link LocalActivityManager#destroyActivity} on the child activity
* and starts the previous activity.
* If the last child activity just called finish(),this activity (the parent),
* calls finish to finish the entire group.
*/
#Override
public void finishFromChild(Activity child)
{
try
{
btnShare.setVisibility(View.GONE);
LocalActivityManager manager = getLocalActivityManager();
int index = mIdList.size()-1;
if (index < 1)
{
finish();
return;
}
manager.destroyActivity(mIdList.get(index), true);
mIdList.remove(index);
index--;
String lastId = mIdList.get(index);
Intent lastIntent = manager.getActivity(lastId).getIntent();
Window newWindow = manager.startActivity(lastId, lastIntent);
setContentView(newWindow.getDecorView());
//Set Heading text to current Id
txtViewHeading.setText(getActivityHeading(lastId));
//Set Back button text to previous Id if applicable
btnBack.setVisibility(View.VISIBLE);
//Back button
String backId = "";
if(mIdList.size() > 1)
{
backId = mIdList.get(mIdList.size()-2);
btnBack.setVisibility(View.VISIBLE);
btnBack.setText(getActivityHeading(backId));
txtViewHeading.setPadding(10,0,0,0);
}
else
{
btnBack.setVisibility(View.GONE);
txtViewHeading.setPadding(0,0,0,0);
}
}
catch(Exception e)
{
e.printStackTrace();
}
}
/**
* Starts an Activity as a child Activity to this.
* #param Id Unique identifier of the activity to be started.
* #param intent The Intent describing the activity to be started.
*/
public void startChildActivity(String Id, Intent intent)
{
try
{
btnShare.setVisibility(View.GONE);
Window window = getLocalActivityManager().startActivity(Id,intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP));
if (window != null)
{
mIdList.add(Id);
setContentView(window.getDecorView());
txtViewHeading.setText(getActivityHeading(Id));
//Back button
String backId = "";
if(mIdList.size() > 1)
{
backId = mIdList.get(mIdList.size()-2);
btnBack.setVisibility(View.VISIBLE);
btnBack.setText(backId);
txtViewHeading.setPadding(5,0,0,0);
}
else
{
btnBack.setVisibility(View.GONE);
txtViewHeading.setPadding(0,0,0,0);
}
}
}
catch(Exception e)
{
e.printStackTrace();
}
}
/**
* The primary purpose is to prevent systems before android.os.Build.VERSION_CODES.ECLAIR
* from calling their default KeyEvent.KEYCODE_BACK during onKeyDown.
*/
#Override
public boolean onKeyDown(int keyCode, KeyEvent event)
{
if (keyCode == KeyEvent.KEYCODE_BACK)
{
//preventing default
return true;
}
return super.onKeyDown(keyCode, event);
}
/**
* Overrides the default implementation for KeyEvent.KEYCODE_BACK
* so that all systems call onBackPressed().
*/
#Override
public boolean onKeyUp(int keyCode, KeyEvent event)
{
if (keyCode == KeyEvent.KEYCODE_BACK)
{
onBackPressed();
return true;
}
return super.onKeyUp(keyCode, event);
}
/**
* If a Child Activity handles KeyEvent.KEYCODE_BACK.
* Simply override and add this method.
*/
#Override
public void onBackPressed ()
{
try
{
btnShare.setVisibility(View.GONE);
int length = mIdList.size();
if ( length > 1)
{
Activity current = getLocalActivityManager().getActivity(mIdList.get(length-1));
current.finish();
}
}
catch(Exception e)
{
e.printStackTrace();
}
}
/**
* Get the correct heading text and language based on activity id
*/
public String getActivityHeading(String id)
{
// method that returns the TEXT for my main heading TextView based on the activity we're on...
}
}
StatusGroupActivity
public class StatusGroupActivity extends TabGroupActivity
{
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
startChildActivity("Status", new Intent(this,Status.class));
}
}
... so basically when my app loads, I get my tabs at the bottom, my header at the top, and the "tab content" in the middle. In my Status activity, I can load another activity from it by using ...
Intent intent = new Intent(getParent(), SomeOtherActivity.class)
TabGroupActivity parentActivity = (TabGroupActivity)getParent();
parentActivity.startChildActivity("Some Other Activity", intent);
... and it loads the SomeOtherActivity activity into the content area. Hitting back takes me back to the Status screen.
Any pointers, examples and assistance with converting this over to use Fragments is so greatly appreciated. I will gladly donate 500 of my rep. points for a full example.
main.xml (Main Activity Layout file)
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.app.FragmentTabHost xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="#android:id/tabhost"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:animateLayoutChanges="true"
tools:ignore="ContentDescription,HardcodedText" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<ImageView
android:id="#+id/imageSuccess"
android:layout_width="wrap_content"
android:layout_height="40dp"
android:adjustViewBounds="true"
android:scaleType="matrix"
android:src="#drawable/bg_navbar_blank" />
<com.myproject.android.BgButtonStyle
android:id="#+id/btnBack"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="5dp"
android:layout_marginTop="0dp"
android:background="#drawable/back_button"
android:text=""
android:textColor="#color/White"
android:textSize="12sp"
android:visibility="visible"
android:layout_alignParentLeft="true"
android:layout_centerVertical="true"
android:padding="5dp"/>
<ImageButton
android:id="#+id/btnShare"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginRight="15dp"
android:background="#null"
android:src="#drawable/icon_share"
android:visibility="visible"
android:adjustViewBounds="false"
android:scaleType="fitXY"/>
<com.myproject.android.AutoResizeTextView
android:id="#+id/txtViewHeading"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:paddingLeft="5dp"
android:text="Status"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textSize="28sp"
android:textStyle="bold"
android:paddingRight="5dp"
android:layout_toEndOf="#id/btnBack"
android:layout_toStartOf="#id/btnShare"
android:layout_centerVertical="true"
android:lines="1"/>
</RelativeLayout>
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="1" >
</FrameLayout>
<TabWidget
android:id="#android:id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="-4dp"
android:layout_weight="0"
android:background="#drawable/bg_tabs">
</TabWidget>
</LinearLayout>
</android.support.v4.app.FragmentTabHost>
In my current TabGroupActivity class, in the finishFromChild and startChildActivity methods, I am able to call setText on the txtViewHeading TextView element in my main activity layout. Which is the current activities "title". If there is more than 1 activity in the group, the back button shows the previous title. How can I duplicate this in the examples below? The main activity layout there is much different than mine.

First you need to add Design Support Library and AppCompatLibrary into your Project
Add this code into your app gradle
compile 'com.android.support:appcompat-v7:24.0.0'
compile 'com.android.support:design:24.0.0'
layout for activity_main.xml (like main.xml in your code)
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/main_content"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<android.support.design.widget.AppBarLayout
android:id="#+id/appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:paddingTop="#dimen/appbar_padding_top"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="#style/AppTheme.PopupOverlay">
</android.support.v7.widget.Toolbar>
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
</android.support.design.widget.CoordinatorLayout>
In above layout ViewPager will provides horizontal layout to display tabs. You can display more screens in a single screen using tabs. You can swipe the tabs quickly as you can.
Root Fragment
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/root_frame" >
View for First Fragment
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:background="#ff0"
android:layout_height="match_parent" >
<TextView
android:id="#+id/tv"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_horizontal"
android:text="#string/first_fragment" />
<Button
android:id="#+id/btn"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:layout_width="wrap_content"
android:text="#string/to_second_fragment"/>
</RelativeLayout>
View for Second and Individual(s) Fragment.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin">
<TextView
android:id="#+id/section_label"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</RelativeLayout>
Now add a MainActivity(like Main Activity in yours code) under which all this thing will handle.
public class MainActivity extends AppCompatActivity {
private TabGroupAdapter mTabGroupAdapter;
private ViewPager mViewPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
ArrayList<Fragment> fragmentList = new ArrayList<Fragment>();
fragmentList.add(new RootFragment());
fragmentList.add(new IndividualFragment1());
fragmentList.add(new IndividualFragment2());
ArrayList<String> name = new ArrayList<String>() {
{
add("Root Tab");
add("Second Tab");
add("Third Tab");
}
};
// Create the adapter that will return a fragment for each of the three
// primary sections of the activity.
mTabGroupAdapter = new TabGroupAdapter(getSupportFragmentManager(),name, fragmentList,);
// Set up the ViewPager with the sections adapter.
mViewPager = (ViewPager) findViewById(R.id.container);
mViewPager.setAdapter(mTabGroupAdapter);
TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
tabLayout.setupWithViewPager(mViewPager);
}
}
There is one FragmentPagerAdapter defined as mTabGroupAdapter inside MainActivity that will add a different tabs inside a single Layout.
First we bind the mTabGroupAdapter to mViewPager.
TabLayout will act like a TabHost under which Tab will be added by FragmentPagerAdapter.
mViewPager is bind to the Tablayout.
Under MainActivity TabLayout will display the name of Tabs.
TabGroupAdapter
public class TabGroupAdapter extends FragmentPagerAdapter {
private ArrayList<Fragment> fragmentList = new ArrayList<Fragment>();
private ArrayList<String> fragment_name;
public TabGroupAdapter(FragmentManager fm, ArrayList<String> name, ArrayList<Fragment> list) {
super(fm);
this.fragmentList = list;
this.fragment_name = name;
}
#Override
public Fragment getItem(int position) {
return fragmentList.get(position);
}
#Override
public int getCount() {
return fragmentList.size();
}
#Override
public CharSequence getPageTitle(int position) {
return fragment_name.get(position);
}
}
In TabGroupAdapter you would pass a List of fragments(or single fragment) and list of fragments name(or single name) as arguments in the Constructor.
IndividualFragment(s) will act like a individual Tab instead of Activity.
RootFragment will be acting as a container for other fragments( First Fragment and Second Fragment)
Root Fragment
public class RootFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.root_fragment, container, false);
FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
fragmentTransaction.replace(R.id.root_frame, new FirstFragment());
fragmentTransaction.commit();
return view;
}
}
First Fragment
public class FirstFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.first_fragment, container, false);
Button btn = (Button) view.findViewById(R.id.btn);
btn.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
FragmentTransaction fragmentTransaction = getSupportFragmentManager().beginTransaction();
//use the "root frame" defined in
//"root_fragment.xml" as the reference to replace fragment
fragmentTransaction.replace(R.id.root_frame, new SecondFragment());
/*
* allow to add the fragment
* to the stack and return to it later, by pressing back
*/
fragmentTransaction.setTransition(FragmentTransaction.TRANSIT_FRAGMENT_OPEN);
fragmentTransaction.addToBackStack(null);
fragmentTransaction.commit();
}
});
}
}
Second Fragment
public class SecondFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container, false);
return rootView;
}
}
Individual(s) Fragment
public class IndividualFragment1 extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container, false);
return rootView;
}
}
public class IndividualFragment2 extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_main, container, false);
return rootView;
}
}
In OnCreateView method you would set a layout of a Tab .
You won't have to use the getTabHost() method.
Let me know if you persist any problem.
Whenever you want to dynamically change or update the Tabs in View Pager just add or remove item from fragmentList and call this method mTabGroupAdapter.notifyDataSetChanged(); inside MainActivity.

Add these dependencies to your project:
compile 'com.android.support:appcompat-v7:23.4.0'
compile 'com.android.support:design:23.4.0'
First change your Main activity must be extended from AppCompatActivity.
Than change your main activity's layout like below:
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/coordinatorlayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".Main">
<android.support.design.widget.AppBarLayout
android:id="#+id/appbarlayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<include
layout="#layout/toolbar_default"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_scrollFlags="scroll|enterAlways" />
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:tabGravity="fill"
app:tabMaxWidth="0dp"
app:tabIndicatorHeight="4dp"
app:tabMode="fixed"
app:tabIndicatorColor="#android:color/white"
android:background="#color/AppPrimary"/>
</android.support.design.widget.AppBarLayout>
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context=".dashboard.DashboardActivity"
tools:showIn="#layout/activity_dashboard">
<android.support.v4.view.ViewPager
android:id="#+id/viewpager_main"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</RelativeLayout>
</android.support.design.widget.CoordinatorLayout>
And here's a toolbar layout example. You can customize however you want.
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/toolbar_main"
style="#style/Widget.MyApp.Toolbar.Solid"
android:layout_width="match_parent"
android:layout_height="#dimen/abc_action_bar_default_height_material"
android:background="#color/AppPrimary"
app:contentInsetEnd="16dp"
app:contentInsetStart="16dp" />
Than you need to create fragments which you'll use in your tabs instead of activities which you use for tabs. In this case this'll your Status Activity if i'm not wrong.
Define a StatusFragment like below:
public class StatusFragment extends Fragment
{
#Override
public void onViewCreated(View view, Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
// this is your Status fragment. You can do stuff which you did in Status activity
}
}
Than you need to define a tabs adapter which you'll bind with your tabs and convert your TabHost to Fragment/Fragment manager type. Titles string array contains strings which you'll show in your tabs indicator. Such as "Status, My Assume Tab, My awesome tab 2
public class DashboardTabsAdapter extends FragmentPagerAdapter {
private String[] mTitles;
public DashboardTabsAdapter(FragmentManager fm, String[] titles) {
super(fm);
this.mTitles = titles;
}
#Override
public Fragment getItem(int position) {
return new StatusFragment();
// You can define some other fragments if you want to do different types of operations in your tabs and switch this position and return that kind of fragment.
}
#Override
public int getCount() {
return mTitles.length;
}
#Override
public CharSequence getPageTitle(int position) {
return mTitles[position];
}
}
And finally in your Main activity find your view pager, tabs create a new adapter and bind them.
final TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
final DashboardTabsAdapter dashboardTabsAdapter = new DashboardTabsAdapter(getSupportFragmentManager(), getResources().getStringArray(R.array.tab_titles));
mViewPagerMain = (ViewPager) findViewById(R.id.viewpager_main);
mViewPagerMain.setOffscreenPageLimit(3);
mViewPagerMain.setAdapter(dashboardTabsAdapter);
tabLayout.setupWithViewPager(mViewPagerMain);
Edit: You'll no longer need TabHost and TabActivity any more. Your tab grup activity will be your ViewPager which handles screen changes and lifecycle of fragments inside. If you need to get this activity from fragments you can use getActivity() method and cast it to your activity and use it's public methods.

"Tabbed Activity" template in Android Studio produces uncaught thread exception

I'm at a complete loss.
I am trying to create a simple Tabbed Activity from the Android Studio wizard. If I run the project, the app hangs, and I get a thread exception error.
D/AndroidRuntime﹕ Shutting down VM
W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0x4179cda0)
I/dalvikvm﹕ threadid=3: reacting to signal 3
I/dalvikvm﹕ Wrote stack traces to '/data/anr/traces.txt'
Which dumps a 4,000 line long stack trace.. which I haven't been able to gather much from after glancing it over a few times.
I've been over this code a hundred times and I can't find anything that stands out. I am able to add a tabbed activity to a brand new project, but when I add it to my current project, it fails to run. I don't know what other info I can provide.. I've been at this all day long.
Manifest:
<activity
android:name=".Blah"
android:label="#string/title_activity_blah" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
It creates a new ViewPager activity
<android.support.v4.view.ViewPager xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:id="#+id/pager"
android:layout_width="match_parent" android:layout_height="match_parent"
tools:context="com.test.testproject.Blah" />
With a default class:
public class Blah extends ActionBarActivity implements ActionBar.TabListener {
/**
* The {#link android.support.v4.view.PagerAdapter} that will provide
* fragments for each of the sections. We use a
* {#link FragmentPagerAdapter} derivative, which will keep every
* loaded fragment in memory. If this becomes too memory intensive, it
* may be best to switch to a
* {#link android.support.v4.app.FragmentStatePagerAdapter}.
*/
SectionsPagerAdapter mSectionsPagerAdapter;
/**
* The {#link ViewPager} that will host the section contents.
*/
ViewPager mViewPager;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_ccs);
// Set up the action bar.
final ActionBar actionBar = getSupportActionBar();
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
// Create the adapter that will return a fragment for each of the three
// primary sections of the activity.
mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
// Set up the ViewPager with the sections adapter.
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(mSectionsPagerAdapter);
// When swiping between different sections, select the corresponding
// tab. We can also use ActionBar.Tab#select() to do this if we have
// a reference to the Tab.
mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
#Override
public void onPageSelected(int position) {
actionBar.setSelectedNavigationItem(position);
}
});
// For each of the sections in the app, add a tab to the action bar.
for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) {
// Create a tab with text corresponding to the page title defined by
// the adapter. Also specify this Activity object, which implements
// the TabListener interface, as the callback (listener) for when
// this tab is selected.
actionBar.addTab(
actionBar.newTab()
.setText(mSectionsPagerAdapter.getPageTitle(i))
.setTabListener(this));
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_ccs, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
#Override
public void onTabSelected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
// When the given tab is selected, switch to the corresponding page in
// the ViewPager.
mViewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
}
#Override
public void onTabReselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
}
/**
* A {#link FragmentPagerAdapter} that returns a fragment corresponding to
* one of the sections/tabs/pages.
*/
public class SectionsPagerAdapter extends FragmentPagerAdapter {
public SectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int position) {
// getItem is called to instantiate the fragment for the given page.
// Return a PlaceholderFragment (defined as a static inner class below).
return PlaceholderFragment.newInstance(position + 1);
}
#Override
public int getCount() {
// Show 3 total pages.
return 3;
}
#Override
public CharSequence getPageTitle(int position) {
Locale l = Locale.getDefault();
switch (position) {
case 0:
return getString(R.string.title_section1).toUpperCase(l);
case 1:
return getString(R.string.title_section2).toUpperCase(l);
case 2:
return getString(R.string.title_section3).toUpperCase(l);
}
return null;
}
}
/**
* A placeholder fragment containing a simple view.
*/
public static class PlaceholderFragment extends Fragment {
/**
* The fragment argument representing the section number for this
* fragment.
*/
private static final String ARG_SECTION_NUMBER = "section_number";
/**
* Returns a new instance of this fragment for the given section
* number.
*/
public static PlaceholderFragment newInstance(int sectionNumber) {
PlaceholderFragment fragment = new PlaceholderFragment();
Bundle args = new Bundle();
args.putInt(ARG_SECTION_NUMBER, sectionNumber);
fragment.setArguments(args);
return fragment;
}
public PlaceholderFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_ccs, container, false);
return rootView;
}
}
}
And a sample fragment:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
android:layout_height="match_parent" android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin"
tools:context="com.test.testproject.Blah$PlaceholderFragment">
<TextView android:id="#+id/section_label" android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</RelativeLayout>

Adding Option Menu in android with Navigation Tabs

I just took the sample code shared by developer android site. I wanted to create a tabbed menu along with the option menu in the action bar. I want my activity to have the navigation tabs along with the action bar menu. I am not getting the action bar menu. But i have seen the applications which have navigation tabs as well as the action bar menu items as well. Please if someone helps me that would be of great help.
MainActivity Class
public class MainActivity extends FragmentActivity implements ActionBar.TabListener {
AppSectionsPagerAdapter mAppSectionsPagerAdapter;
/**
* The {#link ViewPager} that will display the three primary sections of the app, one at a
* time.
*/
ViewPager mViewPager;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Create the adapter that will return a fragment for each of the three primary sections
// of the app.
mAppSectionsPagerAdapter = new AppSectionsPagerAdapter(getSupportFragmentManager());
// Set up the action bar.
final ActionBar actionBar = getActionBar();
// Specify that the Home/Up button should not be enabled, since there is no hierarchical
// parent.
actionBar.setHomeButtonEnabled(true);
// Specify that we will be displaying tabs in the action bar.
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_STANDARD);
// Set up the ViewPager, attaching the adapter and setting up a listener for when the
// user swipes between sections.
mViewPager = (ViewPager) findViewById(R.id.pager);
mViewPager.setAdapter(mAppSectionsPagerAdapter);
mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
#Override
public void onPageSelected(int position) {
// When swiping between different app sections, select the corresponding tab.
// We can also use ActionBar.Tab#select() to do this if we have a reference to the
// Tab.
actionBar.setSelectedNavigationItem(position);
}
});
// For each of the sections in the app, add a tab to the action bar.
for (int i = 0; i < mAppSectionsPagerAdapter.getCount(); i++) {
// Create a tab with text corresponding to the page title defined by the adapter.
// Also specify this Activity object, which implements the TabListener interface, as the
// listener for when this tab is selected.
actionBar.addTab(
actionBar.newTab()
.setText(mAppSectionsPagerAdapter.getPageTitle(i))
.setTabListener(this));
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.template_actvity, menu);
Toast.makeText(getApplicationContext(), "Indie onCreateOptionsMenu", Toast.LENGTH_SHORT).show();
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
return super.onOptionsItemSelected(item);
}
#Override
public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
}
#Override
public void onTabSelected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
// When the given tab is selected, switch to the corresponding page in the ViewPager.
mViewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabReselected(ActionBar.Tab tab, FragmentTransaction fragmentTransaction) {
}
/**
* A {#link FragmentPagerAdapter} that returns a fragment corresponding to one of the primary
* sections of the app.
*/
public static class AppSectionsPagerAdapter extends FragmentPagerAdapter {
public AppSectionsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int i) {
switch (i) {
case 0:
// The first section of the app is the most interesting -- it offers
// a launchpad into the other demonstrations in this example application.
return new LaunchpadSectionFragment();
default:
// The other sections of the app are dummy placeholders.
Fragment fragment = new DummySectionFragment();
Bundle args = new Bundle();
args.putInt(DummySectionFragment.ARG_SECTION_NUMBER, i + 1);
fragment.setArguments(args);
return fragment;
}
}
#Override
public int getCount() {
return 3;
}
#Override
public CharSequence getPageTitle(int position) {
return "Section " + (position + 1);
}
}
/**
* A fragment that launches other parts of the demo application.
*/
public static class LaunchpadSectionFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_section_launchpad, container, false);
// Demonstration of a collection-browsing activity.
rootView.findViewById(R.id.demo_collection_button)
.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Intent intent = new Intent(getActivity(), CollectionDemoActivity.class);
startActivity(intent);
}
});
// Demonstration of navigating to external activities.
rootView.findViewById(R.id.demo_external_activity)
.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
// Create an intent that asks the user to pick a photo, but using
// FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET, ensures that relaunching
// the application from the device home screen does not return
// to the external activity.
Intent externalActivityIntent = new Intent(Intent.ACTION_PICK);
externalActivityIntent.setType("image/*");
externalActivityIntent.addFlags(
Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET);
startActivity(externalActivityIntent);
}
});
return rootView;
}
}
/**
* A dummy fragment representing a section of the app, but that simply displays dummy text.
*/
public static class DummySectionFragment extends Fragment {
public static final String ARG_SECTION_NUMBER = "section_number";
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_section_dummy, container, false);
Bundle args = getArguments();
((TextView) rootView.findViewById(android.R.id.text1)).setText(
getString(R.string.dummy_section_text, args.getInt(ARG_SECTION_NUMBER)));
return rootView;
}
}
}
Activity_main XML File
<android.support.v4.view.ViewPager xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent" />
template_activity Menu XML
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools">
<item
android:id="#+id/addTemplate"
android:orderInCategory="100"
android:icon="#drawable/ic_action_new"
android:title="Add Template"
app:showAsAction="always"/>

Here are some things to try:
I assume that in your template_activity.xml you remembered to include the </menu> tag? (You might have only missed copying+pasting it into your question).
Try using this code in your activity:
#Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
getMenuInflater().inflate(R.menu.template_activity, menu);
return true;
}
Note: You may also have a possible typo in your getMenuInflater().inflate(R.menu.template_actvity, menu); line. Specifically, you misspelled "activity".
Edit: Try the following XML for your menu XML file:
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
tools:context=".MainActivity" >
<item
android:id="#+id/addTemplate"
android:orderInCategory="1"
android:icon="#drawable/ic_action_new"
android:title="Add Template"
android:showAsAction="always"/>
</menu>
As for getting the "three dot" overflow button, I realize now that you are using a device with a built-in menu button. It is intentional that devices with these don't include the overflow buttons. However, if you still want to implement this, you can read more about it here.

Google Maps MapFragment causing the app to crash

I am fairly new to android programming but what I am trying to do seems fairly simple though. I have this setup with 4 different tabs in the action bar, the first should display a Fragment with the Google maps API and the others some other stuff i haven't done yet. Following some tutorials online I managed to get the functionality I wanted for the tabs and get the map to appear.
The app is working fine when changing from the initial tab with the map (tab 1) to any other, but when trying to come back it crashes. Weirdly enough when the map fragment is in one of the tabs it makes the second tab crash as well on some transitions, in the image bellow the transitions shown as blue arrows work fine, while the ones with yellow arrows make the app crash.
http://imageshack.com/a/img839/4796/kf7w.png
If I change the first tab fragment for one of the others all the transitions work fine again, therefore I think the problem must indeed be with the map fragment.
My code is as follows:
MainActivity.java
public class MainActivity extends FragmentActivity implements ActionBar.TabListener {
private ViewPager viewPager;
private TabsPagerAdapter mAdapter;
private ActionBar actionBar;
private String[] tabs = null;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
viewPager = (ViewPager) findViewById(R.id.pager);
actionBar = getActionBar();
mAdapter = new TabsPagerAdapter(getSupportFragmentManager());
viewPager.setAdapter(mAdapter);
actionBar.setHomeButtonEnabled(false);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
tabs = getResources().getStringArray(R.array.tab_names);
for (String tab_name : tabs)
actionBar.addTab(actionBar.newTab().setText(tab_name).setTabListener(this));
/**
* on swiping the viewpager make respective tab selected
* */
viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
#Override
public void onPageSelected(int position) {
// on changing the page
// make respected tab selected
actionBar.setSelectedNavigationItem(position);
}
#Override
public void onPageScrolled(int arg0, float arg1, int arg2) {
}
#Override
public void onPageScrollStateChanged(int arg0) {
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
#Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
}
#Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
viewPager.setCurrentItem(tab.getPosition());
}
#Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
}
}
TabsPagerAdapter.java
public class TabsPagerAdapter extends FragmentPagerAdapter {
public TabsPagerAdapter(FragmentManager fm) {
super(fm);
}
#Override
public Fragment getItem(int index) {
switch (index){
case 0:
return new GoogleMapsFragment();
case 1:
return new SampleFragment();
case 2:
return new ContactFragment();
case 3:
return new WhoFragment();
default:
Log.e("switch", "default");
}
return null;
}
#Override
public int getCount() {
// get item count - equal to number of tabs
return 4;
}
}
GoogleMapsFragment.java
public class GoogleMapsFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.activity_map, container, false);
return rootView;
}
#Override
public void onDestroyView() {
super.onDestroyView();
Fragment f = (Fragment) getFragmentManager().findFragmentById(R.id.map);
if (f != null) {
getFragmentManager().beginTransaction().remove(f).commit();
}
}
}
And the xml files:
activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".MainActivity"
android:background="#ffff0000"
android:id="#+id/mainLayout"
android:tag="#+id/mainLayoutTag" >
<android.support.v4.view.ViewPager xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:tag="pagerTag">
</android.support.v4.view.ViewPager>
</RelativeLayout>
activity_map.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:id="#+id/mapLayout"
android:tag="mapLayoutTag" >
<fragment android:id="#+id/map"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:name="com.google.android.gms.maps.MapFragment"
android:tag="gMaps"/>
</RelativeLayout>
The other java classes are pretty much empty and the other xml files only contain the default RelativeLayout.
Any suggestion as to what I could do to fix this?
Thanks for your time reading all of that :)
EDIT:
Forgot to put the crash error:
02-10 23:42:01.723: E/AndroidRuntime(7221): Caused by:
java.lang.IllegalArgumentException: Binary XML file line #9:
Duplicate id 0x7f05000a, tag gMaps, or parent id 0x7f050009 with another
fragment for com.google.android.gms.maps.MapFragment

Well managed to solve this only by switching the position of the super call in the onDestroy() function. It seems I needed to first destroy or unassign the fragment from its parent to make it work. Heres the new onDestroy() code if anyone is still having the same problem:
#Override
public void onDestroyView() {
userMarker.remove();
Fragment f = (Fragment) getFragmentManager().findFragmentById(R.id.map);
if (f != null) {
getFragmentManager().beginTransaction().remove(f).commit();
}
super.onDestroyView();
}

After loads of search, finally I found this tutorial : Using an Android MapView inside of a Fragment
and it works awesome !!! hopefully it helps your guys !

Action Bar Tabs: How do I pass arguments when using a single fragment instantiated more than once

I want to include Action Bar Tabs in my application and am working through a tutorial example to get my head round it all.
The tutorial has two tabs each with their own fragment so then when the tab is selected the correct fragment is shown...this seems to be the approach shown in all the examples I can find.
What I want to do however is to have each tab have their own instantiation of the Same fragment and to pass an argument to the Fragment so that the code can behave differently dependent on which tab is selected.
This is the code from the tutorial:
ACTIVITY (Start Activity)
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
appContext = getApplicationContext();
//ActionBar
ActionBar actionbar = getActionBar();
actionbar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
ActionBar.Tab PlayerTab = actionbar.newTab().setText("Fragment A");
ActionBar.Tab StationsTab = actionbar.newTab().setText("Fragment B");
Fragment PlayerFragment = new AFragment();
Fragment StationsFragment = new BFragment();
PlayerTab.setTabListener(new MyTabsListener(PlayerFragment));
StationsTab.setTabListener(new MyTabsListener(StationsFragment));
actionbar.addTab(PlayerTab);
actionbar.addTab(StationsTab);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch(item.getItemId()) {
case R.id.menuitem_search:
Toast.makeText(appContext, "search", Toast.LENGTH_SHORT).show();
return true;
case R.id.menuitem_add:
Toast.makeText(appContext, "add", Toast.LENGTH_SHORT).show();
return true;
case R.id.menuitem_share:
Toast.makeText(appContext, "share", Toast.LENGTH_SHORT).show();
return true;
case R.id.menuitem_feedback:
Toast.makeText(appContext, "feedback", Toast.LENGTH_SHORT).show();
return true;
case R.id.menuitem_about:
Toast.makeText(appContext, "about", Toast.LENGTH_SHORT).show();
return true;
case R.id.menuitem_quit:
Toast.makeText(appContext, "quit", Toast.LENGTH_SHORT).show();
return true;
}
return false;
}
#Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putInt("tab", getActionBar().getSelectedNavigationIndex());
}
}
The following class is included at the end in the same java file :
class MyTabsListener implements ActionBar.TabListener {
public Fragment fragment;
public MyTabsListener(Fragment fragment) {
this.fragment = fragment;
}
public void onTabReselected(ActionBar.Tab tab, android.app.FragmentTransaction ft) {
Toast.makeText(StartActivity.appContext, "Reselected!", Toast.LENGTH_LONG).show();
}
public void onTabSelected(ActionBar.Tab tab, android.app.FragmentTransaction ft) {
ft.replace(R.id.fragment_container, fragment);
}
public void onTabUnselected(ActionBar.Tab tab, android.app.FragmentTransaction ft) {
ft.remove(fragment);
}
This is A FRAGMENT:
public class AFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.afragment, container, false);
}
}
This is B FRAGMENT
public class BFragment extends Fragment {
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.bfragment, container, false);
}
}
HERE ARE THE XML FILES:
Main.xml
<LinearLayout
android:orientation="vertical"
android:id="#+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent" >
A Fragment:-
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView android:id="#+id/textView1"
android:text="Fragment A"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</LinearLayout>
B Fragment:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView android:id="#+id/textView2"
android:text="Fragment B"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</LinearLayout>
So what I would like to do would be to get rid of Fragment B completely and have both Station and Player tabs use Fragment A. Then within Fragment A put code that did one thing if it is for Station and something else if it is for Player. I've tried all sorts with trying to put an Args Bundle but I'm new to this and nothing I have tried has worked,

I now have a solution that works here.
The way that I have done it is to set a Tag on each of the Tabs as I set them up and then get the current Tab in my fragment and use it's tag.
Code changes are as follows:
In Activity, so that I am just using Fragment A:-
ActionBar.Tab PlayerTab = actionbar.newTab().setText("Tab A")
.setTag("A");
ActionBar.Tab StationsTab = actionbar.newTab().setText("Tab B")
.setTag("B");
Fragment PlayerFragment = new AFragment();
Fragment StationsFragment = new AFragment();
Now within Fragment A I have overriden onResume() and put in the following code :-
#Override
public void onResume() {
// TODO Auto-generated method stub
super.onResume();
TextView v = (TextView)getView().findViewById(R.id.textView1);
Tab b = getActivity().getActionBar().getSelectedTab();
String c = b.getTag().toString();
if (c.equals("A"))
v.setText("Tab A has been selected");
if (c.equals("B"))
v.setText("It's Tab B now");
}